Hello, I am a security supervisor at a luxury condo. im looking to add a switch that will overlay text to the bottom of our live streaming front desk camera(to the residents tv if put on the correct channel) it is only one line and it will be turned on and off never changed it is to notify the residents the mail has been delivered. is there a switch that can allow me to do this? the picture attatched is all im looking to do preferably with a switch to make the words appear and then when switched off they go away. any information will greatly help me and my headaches lol thank you all in advance
